Resilient wheel.



S. C. BARR.

RESILIENT WHEEL.

APPUCATIOH FILED JAN. 11, 1915.

1,272,602. Patented July16,1918.

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WITNESSES A TTORN E Y the' depression of one section is practically itto yield and yet the yieldi-ngsection is resisted by at least one andprobably two of the rubber blocks utilized. Thej 'ontward movement ofthe tread. sections is positively ,lirn ited' sby the lateral iormationupon the bases-of the hinges and consequently thecollapsible box-likeformation is never permitted to become entirely extended and ittherefore results that there can never 'be'iany rigid resistance 7,caused by the alinementbf the hinged sections. The function seems to benovel as a result ofthe combination afforded by a-' single tread memberwith a yieldable support at either end andbygthe adjacent ends oftreadimember's having a-sing'le yieldable support, This function isstill further jnotable becausethe yielding of one' offt he sections willexert a pressure upon'thefadja'cent, section tojcause it to moveavvayfrom the telly. However, such movementis :pre-

Vented "by the I lateral extensions upon the ib asesof'the hinges.Thistendencyisoaused V by the?mannerof mounting theplatesiuponfthejrubber'blocks The p'late acts'upon the I principle of: theflevervfi lcrumed. at its cen- "ter,jthe movement-of one endi'of the fle'ver"ften'ding to causemo'v e'inent of the other end V in thepppositedirectioiraboutthefulcrum;

when .the'flateral extensions are 'efi.ecti-'ve, -the ..plat e iac'ts,uponthe. principle of the "lever ffulcrumedat its end,"a resistance atlts-cenjcrumed end; which is the opposite direction to'the applied'force' at its 'f'ree'end. The

firesult oi this structureisthat when a tread jif c 'el iyiels e. h edie d 1 h 'ii'a e ead is tion iqw lf e more d y Statedinanother way, ifone tread section upp'orted' j than grinder :normal conditions.

received afsevere shocli orblow f roma stone parefcl'to assume its shareoffthe shock. The

v TIaving" thus described my' invention what l Ina resilient Wheel",affelly, an a nnu 1lar-m'6n1ber comprisingtr'ead sections, platesjoining said "tread sections, and resilient silie nt iiieinb'er Warlfioflfi he tread surfaoes of j said tread 2. a in t i zii l, ai ll'ylija ums mpri m'g'tre dfs ct e s p e n ngjsaicl" tr e- 1. s ti l a; reellent'ii w l s id-rle e n saidii ln"a d i g s; r anged nLPe rS ebel tlof I I supp rciii said sections silierlt nieans positionedfbetiv BESTAVNLABLE COPY hingeEmembers'iconnecting said sections to not eflectiveupon the other sectlon to cause 15L." Irr a resilient wheel, a Wheelbody, an

annular member comprising tread sections,

;h -i;ngcS;connecting said sections to aid wheel body, and means tolimit the movement of said hinges. r

5. In a resilient Wheel, a wheelbody, an annular member comprising"tread sections, resilient means to "support said tread sec-''tions,fhing'e members to connect the ends of each of said sections tosaid heel body, and means to prevent alinement o-fthe mam-38o.bers'ofeach of saidliinge members. f

6. In" a resilient 'Wheel,-"-a "wheel body, an annular member comprisingtread setitioiis,

resilient means to support-said "tread sections, andhing'es to join"both endsfof said ss tread sectionsto said wheel body;

'7. In "a re ilient Wheel, --a" tre'ad member comprising tread wsections 1 connected together, resilient supports positionedat the endsof eaclrof saidsections,said sections-.90

being yieldable substantially independent of each other, and hingemembers-upon which said tread sectionsyield.

'8. ,A resilient Wheel comprising a tvhe'el' body, a plurality 'olftread sectiongyieldable"95 boX-like's'ections :fto j oin s'uch tfe'adsections together and to thefwheelbo dy, and resilient. means tosupport' said box-like (sections;

9. In a resilient ,Wheel, the combination of a' ,Wheel body, a-unitary"member comprising tread-sections disposed about said wheel 7 body, andyieldable bQX-'like formations I to connect saidtrea'd sectiensaethewhel body, the two sidesof s aidbox'lik termations be-v ing collapsiblecindependently of eaeh;other. .105

:10; A resilient vvh'eel comprising 'a wheel body, a pliirality oftreadsections, and-y ieldable bOX-lili sections to j oin saeh tread sections"together and to the -Wh'e e1 bodyffl 11 A resilient Wheel,whichicomprisesa1110 wheel body, a} plurality of tread isections each ofsaidQboX-like elements joini'ng' two adj acent ftread' setion's,' twosides {of each box-like element being independently Jcol- 1 1 5 lapsibleand io'i'nin' the-tread sections to' the n l r H g I V g l l H v v V I,I V v 1 Wheel body whichisthejifourth srdelof said mean'sm unted upo s-f y pr said plates, said plates beingpositionedinsections."

12. A resilient Wheel, hich a wheelibody, aiplurality oftread sections,and.- 1 20;

.ayieldablerbox like -elefnent I t o' ad acent"-tiiead fsection *bodyand-"to each other;isaidbox likef ele-,

ments being constflited tb perniit oneitread 1 5 section to'yield to'vvard -the Tr v' lfe el body Twith out' infiuencing-the adjacent BESTAVAILABLE COPY her and felly to support adjacent ends of her and fellyto support adjacent ends of tread sections, and links connecting saidadtread sections, and links connectin adj ajacent ends of treadsections, said links pocent ends of tread sections, said linl s posi-.sitioned upon said means so that movement tioned to oscillate upon saidresilient means. 5 of one tread section toward said felly will Intestimony whereof I hereby aifix my 15 tend to cause the adjacent treadsection to signature in presence of two witnesses.

move away from said felly. SAMUEL CLAY BARR.

14. In a resilient wheel, a felly', an annu- Witnesses: lar membercomprising tread sections, re- FRANK P. HILLToN, 10 silient meanspositioned between said mem- MARGARET E. THATGHER.

Gtpies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, .D. 0.

